Spark Fiend

When this creature enters, roll two six-sided dice. If you rolled 2, 3, or 12, sacrifice this creature. If you rolled 7 or 11, don't roll dice for this creature during any of your following upkeeps. If you rolled any other total, note that total. At the beginning of your upkeep, roll two six-sided dice. If you rolled 7, sacrifice this creature. If you roll the noted total, don't roll dice for this creature during any of your following upkeeps. Otherwise, do nothing.

Power / Toughness: 5 / 6